Jack Aidley

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Formerly a games developer, I am now studying for a PhD in microbial genetics.

	868 reputation	bio	website		visits	member for	5 months
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1h	revised	Are human males and females more genetically different than members of other species? added 15 characters in body
15h	revised	Are human males and females more genetically different than members of other species? added 3 characters in body
18h	answered	Are human males and females more genetically different than members of other species?
May 16	comment	Why do eukaryotic organisms have introns in their DNA? But prokaryotes do have introns - ncbi.nlm.nih.gov/pmc/articles/PMC177115 - although on nowhere near the scale that Eukaryotes do.
May 15	comment	Why aren't organelles considered alive? In human cells, mitochondrial DNA codes for just 37 genes. All other genes required for mitochondrial function have been transfered to the nuclear DNA. Specifically the POLG and POLG2 genes that are involved in mitochondrial DNA replication are now located on chromosomes 15 and 17, so without being present in the host cell they could not replicate. The replication itself occurs in the mitochondria but the proteins needed are synthesised by the host machinery.
May 15	comment	Why aren't organelles considered alive? Neither Mitochondria nor Plasmids could maintain or replicate themselves outside of a cell because both have passed the genes that encode for key proteins over to the host cell.
Apr 18	comment	Why are there no wheeled animals? I mean that finding an animal with wheels would demonstrate both that it is anatomically possible and that it is evolutionarily possible. I consider both to be good arguments as to why we'll never find such a thing but I suspect the reality is that the space of possible organisms that might be anatomically possible has never actually been explored because there's no evolutionarily advantageous pathways that leads there.
Apr 17	comment	Why are there no wheeled animals? Equally I'd conclude there must be some anatomic way it works too.
Apr 17	comment	Why are there no wheeled animals? Um, I not sure which argument is strongest. I think I favour the evolutionary angle, myself. Both are though, I think, sufficient answers but the evolutionary one probably better reflects the historical reality of matter. Wheels didn't evolve because there was no beneficial intermediate for them to pass through.
Apr 16	answered	Why are there no wheeled animals?
Apr 15	answered	Whence fecal E. coli (et al.) if swallowing it is dangerous?
Mar 22	answered	Is there a way to measure the amount of bytes that are possible to encode in a DNA molecule?
Mar 21	comment	Why is that all the animals can swim in water without learning to swim but humans cannot? I found a website that claims "Most animals are good swimmers. In fact, they can swim from the time they’re born. But some animals have to be taught how to swim. This group includes people, gorillas and chimpanzees."
Mar 21	answered	Why is that all the animals can swim in water without learning to swim but humans cannot?
Mar 13	comment	What is the difference between a circular and a cat's-eye pupil? Your alternative explanation makes no sense: animals with vertical pupils have these pupils expand to circles in low light conditions so the slit is not used during night vision.
Mar 13	answered	What is the difference between a circular and a cat's-eye pupil?
Mar 12	awarded	Enlightened
Mar 5	comment	Perception of artificial light - flickering I believe this answer is correct; but I think it's worth emphasising that these things are actually flickering. It's not an illusion; if anything the absence of flicker when directly observing is the illusion.
Mar 4	comment	Types of bacteria that will kill other types of bacteria? I doubt it. Such bacteria are extremely diverse and cover a large spread of species.
Feb 26	comment	Effect of doubling volumes of PCR reagents Older models simply raise the block to the temperature and don't worry about controlling for getting the liquid in the tube to the indicated temperature. In this case, it is possible that the real temperatures were different depending on volume.